Spherical lenses
Plano-convex spherical lens
Plane reflectors can be used for beam steering and interferometry and as optical elements in imaging systems.The surface flatness and reflectivity are taken as the important parameters .High surface precision can reduce the light loss due to dispersion.Each plano-convex spherical lens is based on the principle of light refrac- tion and characterized by the thick center,thin rim,positive focal length, flat surface on one side and convex surface on the other side.Thick plano-convex spherical lenses can be used for telescoping,converging and so on,depending on their thicknesses.Plano-convex spherical lenses are suitable for the collimation and focusing through monochromatic lights.
Plane reflectors can be used for beam steering and interferometry and as optical elements in imaging systems.The surface flatness and reflectivity are taken as the important parameters .High surface precision can reduce the light loss due to dispersion.Each plano-convex spherical lens is based on the principle of light refrac- tion and characterized by the thick center,thin rim,positive focal length, flat surface on one side and convex surface on the other side.Thick plano-convex spherical lenses can be used for telescoping,converging and so on,depending on their thicknesses.Plano-convex spherical lenses are suitable for the collimation and focusing through monochromatic lights.
| Name | Parameters |
| Material | K9/quartz/sapphire/Si/Ge/CaF2/LiF/BaF2/MgF2/ZnSe,etc. |
| Focal length tolerance | ±1% |
| Thickness tolerance | ±0.02mm |
| Dimension tolerance | ±0.02mm |
| Surface accuracy | λ10 |
| Surface quality | 20/10 or better |
| Centration | <3arcmin |
| Clear Aperture | >90% |
| Bevel | <0.2 x 45° |
| Coating | As per customer's request |
Biconvex spherical lensA biconvex spherical lens is a convex lens characterized by the convex surface on its two sides and a positive focal length whichis longer in its middle and shorteratitsends.Biconvex spherical lensesare mainly used for converging the light from point light sources or transmitting images to other optical systems.
| Name | Parameters |
| Material | K9/quartz/sapphire/Ge/CaF2/ZnSe,etc. |
| Focal length tolerance tolerance | ±1% |
| Thickness tolerance | ±0.02mm |
| Dimension tolerance | ±0.02mm |
| Surface accuracy | λ10 |
| Surface quality | 20/10 or better |
| Centration | <3arcmin |
| Clear Aperture | >90% |
| Bevel | <0.2 x 45° |
| Coating | As per customer's request |